Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
18,140 days
From Monday, January 3, 1977 to Thursday, September 3, 2026.
Monday–Friday weekdays12,958
Weeks and days2,591w 3d
Calendar span49 years, 8 months
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.